Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 219, Issue -, Pages 209-215Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2017.07.023
Keywords
Bi2WO6; Hollow structure; Photocatalysts; CO2 photoconversion; Quantum size effect
Funding
- National Basic Research Program of China (the 973 Program) [2013CB632401]
- National Natural Science Foundation of China [21333006, 21573135, 11374190, 51002091, 21007031]
- Taishan Scholar Foundation of Shandong Provinc, China
- Shandong University [2016WLJH16]
- Shandong Province Natural Science Foundation [ZR2014JL008]
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Three-dimensional hollow structures made up of Bi2WO6 quantum dots were prepared by one-pot solvothermal synthesis using ethylene glycol as reactive solvent. The structural, optical and CO2-photoreduction to methanol of these hollow structures were investigated. The ethylene glycol is important not only in assembling the three-dimensional hollow structures but also in suppressing the agglomeration of Bi2WO6 quantum dots. The hollow structure of Bi2WO6 quantum dots has a much higher CO2 adsorption capacity and a wider band gap than does bulk-Bi2WO6, so that the CO2 photoconversion reaction is much faster for the hollow structures made up of Bi2WO6 quantum dots. (C) 2017 Published by Elsevier B.V.
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